Home / 1,899,920.40-2,849,880.60-479,980.56

Finding the Fourth Proportional to 1,899,920.40, 2,849,880.60 and 479,980.56

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Solution

The fourth proportional to 1,899,920.40, 2,849,880.60 and 479,980.56 is: 719,970.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899,920.40 : 2,849,880.60 = 479,980.56 : x
  2. Step 2: Convert to fraction form
    1,899,920.40/2,849,880.60 = 479,980.56/x
  3. Step 3: Cross multiply
    1,899,920.40x = 2,849,880.60 × 479,980.56
  4. Step 4: Simplify right side
    1,899,920.40x = 1,367,887,286,321.14
  5. Step 5: Solve for x
    x = 1,367,887,286,321.14/1,899,920.40
  6. Step 6: Final answer
    x = 719,970.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.